I have just listed Amstrong MT 500 on eBay. Cracking bike bought from here last year. The start price is what I paid and I have put another £500 ish into it with New Hagon shocks and service plus a few other bits n pieces.
Cracking bike, but I have 5 and just haven't really used this.
Must point out that this bike is a credit to it's last owner and starts and runs great - a lot easier to start than any I rode while in the army!